| Ptyonius | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Sarcopterygii |
| Clade: | Tetrapodomorpha |
| Order: | †Nectridea |
| Family: | †Urocordylidae |
| Subfamily: | †Urocordylinae |
| Genus: | †Ptyonius Cope, 1875 |
Ptyonius is an extinct genus of nectridean tetrapodomorphs within the family Urocordylidae.[1]
- ^ Camp, Charles Lewis; VanderHoof, Vertress Lawrence (1940). Bibliography of Fossil Vertebrates, 1928-1933. The Society. p. 494. ISBN 978-0-8137-2027-2.